<template>
    <div class="login_container">
        <div class="login_box">
            <!-- 头像区域 -->
            <div class="avatar_box">
                <img src="../assets/logo.png" alt="">
            </div>
            <!-- 登录区域 -->
            <el-form :model="loginForm" ref="loginFormRefs" :rules="loginFormRules" label-width="0px" class="loginForm">
                <!-- 用户名 -->
                <el-form-item prop="username">
                    <el-input v-model="loginForm.username" prefix-icon="iconfont icon-user"></el-input>
                </el-form-item>
                <!-- 密码 -->
                <el-form-item prop="password">
                    <el-input v-model="loginForm.password" prefix-icon="iconfont icon-lock_fill" type="password"></el-input>
                </el-form-item>
                <!-- 按钮区域 -->
                <el-form-item class="form_btn">
                    <el-button type="primary" @click="login">登录</el-button>
                    <el-button type="info" @click="resetForm">重置</el-button>
                </el-form-item>
            </el-form>
        </div>
    </div>
</template>

<script>
export default {
    data() {
        return {
            loginForm: {
                username: 'admin',
                password: '123456'
            },
            loginFormRules: {
                username: [
                    { required: true, message: '请输入用户名', trigger: 'blur' },
                    { min: 3, max: 15, message: '请输入3-15个字符', trigger: 'blur' }
                ],
                password: [
                    { required: true, message: '请输入密码', trigger: 'blur' },
                    { min: 6, max: 20, message: '请输入6-20个字符', trigger: 'blur' }
                ]
            }
        }
    },
    methods: {
        resetForm() {
            this.$refs.loginFormRefs.resetFields()
        },
        login() {
            this.$refs.loginFormRefs.validate(async valid => {
                if (!valid) return
                const { data } = await this.$http.post('login', this.loginForm)
                if (data.meta.status !== 200) return this.$message.error(data.meta.msg + '，登录失败!')
                window.sessionStorage.setItem('token', data.data.token)
                this.$message.success(data.meta.msg)
                this.$router.push('/home')
            })
        }
    }
}
</script>

<style lang="less" scoped>
    .login_container {
        width: 100%;
        height: 100%;
        background-color: #2b4b6b;
    }

    .login_box {
        width: 450px;
        height: 300px;
        background-color: #fff;
        position: absolute;
        top: 50%;
        left: 50%;
        transform: translate(-50%, -50%);
        .avatar_box {
            width: 130px;
            height: 130px;
            border: 1px solid #eee;
            background-color: #fff;
            box-shadow: 0 0 10px #ddd;
            padding: 10px;
            border-radius: 50%;
            position: absolute;
            left: 50%;
            top: -50%;
            transform: translate(-50%, 50%);
            img {
                width: 100%;
                border-radius: 50%;
                background-color: #eee;
            }
        }
    }

    .loginForm {
        position: absolute;
        bottom: 0;
        width: 100%;
        padding: 10px 20px;
        box-sizing: border-box;
        .form_btn {
            display: flex;
            justify-content: flex-end;
        }
    }

</style>